Very sad indeed. I've been a lifelong Slayer fan since their first album "Show No Mercy" was released back in 1983 (I was in the 3rd grade and owned it on vinyl). Jeff Hanneman wrote the majority of Slayer's best known tracks such as Angel of Death and Raining Blood to mention a couple. He was a true metal titan and my favorite metal guitarist of all time too. Here are some of my all time favorite Jeff Hanneman tracks."The Antichrist"